Records for Missoula Area, Montana (MSOthr) on 09-20
Record Highs
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1: 91°F (1938)
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2: 86°F (1936)
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3: 86°F (1917)
Record Lows
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1: 24°F (1983)
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2: 26°F (1909)
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3: 29°F (1934)
Lowest Highs
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1: 58°F (1937)
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2: 54°F (1938)
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3: 54°F (1919)
Highest Lows
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1: 48°F (1968)
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2: 50°F (2017)
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3: 50°F (1983)
Highest September temperature:
99°F on 09-01-1967.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 56.9°F
Average high is 71.4°F
Average low is 42.5°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 0.56" (1984)
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2: 0.52" (1968)
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3: 0.28" (1986)
Precipitation data from 1893 to 2022.